Machine for use in the manufacture of boots and shoes.



J. B. HADAW AY. MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES.

APPLIUATION'PILED DBO. 22, 1910. 7 1,01 9,956. Patented Mar. 12, 1912:

I/V/T/VESSEST %M 2 UNITED STATES PATENT OFFICE.

JOHN B. HADAWAY, OF SWAMPSOOTT, MASSACHUSETTS, ASSIGNOR TO UNITED SHOEMACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR USE IN THE MANUFACTURE OF BOOTS AND SHOES.

Application filed December 22, 1910.

To all whom it may concern:

Be it known that I, JOHN B. HADAWAY, a citizen of the United States,residing at Swampscott, in the county of Essex and State ofMassachusetts, have invented certain Improvements in Machines for Use inthe Manufacture of Boots and Shoes, of which the following description,in connection with the accompanying drawings, is a specification, likereference characters on the drawings indicating like parts in theseveral figures.

This invention relates to machines for use in the manufacture of bootsand shoes, and more particularly to that class of machines in whichhammering and rubbing members are employed for operating upon shoebottoms.

An important object of the invention is to provide a sole levelingmachine of the type which employs a relatively movable finishing rolland shoe supporting jack wit-h an improved roll for use in leveling,compacting, surfacing and otherwise finishing the face of an outsole, inturn and welt work. In this aspect, my invention is especially adaptedto be applied to such a machine, for example, as is illustrated anddescribed in the co-pending application of Andrew Eppler, Serial No.$15,024:, filed May 8, 1906, and in connection with which a preferredembodiment of the present invention is herein shown and described.

Machines of the type illustrated in the application referred to, employa finishing roll which comprises a carrier supporting a plurality ofworleengaging members and mounted on a shaft from which rotary motion issupplied to the carrier. Usually the work-engaging members are arrangedlongitudinally of the shaft which supports the carrier, and areconstructed to deliver a series of blows to compact and level thesurface of the sole being treated.

A feature of my invention is the provision of work-engaging membersconstructed and arranged to hammer and pound the outsole, and betweeneach two such percussive blows to iron, rub and smooth out the unevenand indented parts resulting from the impact of the hammering members.This combination of alternately operating hammering and rubbingmemberswill be Specification of Letters Patent.

Patented Mar. 12, 1912.

Serial No. 598,756.

found to be highly efficient, inasmuch as the sole is much more rapidlyand accurately shaped to the last than is possible by the use of toolsnow available. Moreover it is a dis tinct advantage to perform thehammering and rubbing operations simultaneously since the rough andpebbly surface left by the hammering members is smoothed and polishedbefore becoming set and hard.

To secure the above stated advantages, I prefer to provide a. rollcomprising alternate series of smaller rolls and rubbing bars arrangedabout the periphery of the rotary carrier. Preferably too, the smallrolls are pivoted in the carrier so as to be freely rotatable abouttheir own axes, while the alternating rubbing bars are fixed againstrotary movement; the construction being such that as they contact withthe work the rolls turn independently upon their axes so as to engagethe work with a sharp impact and then to turn and roll over a portion ofthe stock.

The rubbing members or bars are preferably yieldably mounted, so thatwhen the machine is at rest these members are spring pressed outwardradially with their acting faces so positioned as to maintain the normal cylindrical form of the roll as a whole. W hen, moreover, the rollis in motion this arrangement permits the rubbing members to yieldindependently of, and with relation to one another enabling them tofully conform to the contour of the work operated upon. The springsfurthermore prevent the beaters or rubbers from contacting with thestock too violently and from rebounding so as to lose their effectivecontact. It is to be understood that not only is this arrangement highlyefiicient for performing the above described operations on the sole of aturn or Goodyear shoe, as used in connection with the machine abovereferred to, but my invention in its preferred embodiment is equallyapplicable to a machine, for example, of the type described in BritishPatent No. 16,589 of 1908, for leveling, beating out, or pounding up theoverlasted margin of upper and lining upon the bottom of a lasted shoe,whether along the forepart of a McKay shoe or at the heel seat of eithera McKay or Goodyear shoe. In this use of my invention, the uppermaterials along the bottom of a lasted shoe are compacted and shaped tomake them conform snugly to the last for forming a suitable surface onwhich to lay the outsole.

Although in the machine shown in the above mentioned United Statesapplication, in connection with which a preferred embodiment of myinvention is herein shown and described, the roll carrier shaft isjournalcd in an arm or frame movable over the work in a directionlongitudinally of the shoe, it is equally within the scope of myinvention to employ a stationary supportfor the carrier, in which casethe shoe may be moved under the support and held against the roll by theoperator as shown in the British patent to which reference has beenmade.

Many other uses and modifications such as will readily occur to oneskilled in the art can be made without departing from the spirit andscope of my invention.

These and other features will appear from the following description ofan illustrative embodiment of the present invention read in connectionwith the accompanying drawlngs.

Referring to the drawings :Figure 1 is an end view in elevation showingone embodimenet of my invention applied to a machine of the typeillustrated in the before mentioned United States application. Fig. 2 isa longitudinal elevation, mostly in section, and taken on the line 22 ofFig. 1. Fig. 3 is a cross sectional view of the roll taken on the line3-3 of Fig. 2, looking toward the right.

The machine to which preferably my invention is applied comprises amovable frame or arm 2 pivotally mounted at its rear end in the upperrear portion of the machine frame. The arm 2 at its forward end isprovided with a rotary shaft or rod 4 journaled in suitable bearings 6and 8 formed in the arm 2. At one end of the shaft 4 a pulley 10 ismounted rigidly secured to the said shaft 4 as by a set screw 12. Overthe pulley 10 passes a belt by means of which pulley 10 and shaft 4 arerotated when the machine is in motion. At its other end (Fig. 1), theshaft 4 is re strained from lengthwise or longitudinal movement by acollar 14 securely fixed to the said shaft 4 as by a screw 16. The shaft4 carries rigidly fixed thereto so as to revolve with it a leveling roll18 to be here after described. The arm 2, carrying at its forward endthe leveling roll 18, as above stated, is arranged to have movementlengthwise of the shoe operated upon and, conveniently, heel and toerests of the usual or any convenient construction are provided for thesupport of the work as illustrated in Fig. 1.

The construction of the leveling roll 18 which forms the subject of thepresent invention is as follows: A hub 20 formed with flanges 22, 24 isfixed to the shaft 4 as by a key 26, Fig. 3. The portion of the shaft 4which carries the fixed pulley 10 is enlarged, forming a shoulder 28upon the said shaft. Binding screws 30 threaded through the flanged hub20 and bearing against the shaft 4 serve by their frictional engagementwith shaft 4 to secure the hub 20 against longitudinal displacement, andto hold it snugly against the shoulder 28 of the shaft 4.

The working members comprise a series of rolls 32, and a series ofrubbing members 34, and conveniently these working members are disposedlongitudinally of the shaft 4 as shown in Fig. 2. Preferably, as shown,the rolls 32 are of substantially the same general shape as rollsusually employed in sole leveling machines, being slightly concavedlongitudinally to conform approximately to the curvature of the shoesole. These rolls 32 are supported at their ends by means of bolts 36.The bolts 36 are threaded through end disks 38, 40, and into and throughthe flanges 22 of the hub 20 so as to project inwardly and beyond theseflanges. The inner portions of these bolts 36 are reduced in diameterover the flanged portions and serve as trunnions or pivot studs forsupporting the ends of rolls 32; the construction being such that therolls 32 are freely and independently rotatable. The bolts 36 furtherserve to draw the end disks 38, 40 inwardly hard against the hub flanges22.

The rubbing members 34 are shown as bars or ribs with rigid actingfaces, and these members like the rollers 32 may conveniently beslightly concaved longitudinally. The ribs 34 terminate in lugs 42, andthe lugs 42 project through slots or openings in the flanged portions ofthe hub, and are supported in guideways in the end disks 38, 40 as shownin Fig. 2.

An undulating leaf spring 44 is positioned between each rib 34 and thehub 20; each spring 44 abutting at its ends against fixed stops 46.These springs 44 normally press the rubbing bars 34 outwardly inapproximately radial lines but permit the said bars to yield inwardlyunder pressure of the work. The recesses or openings in the hub flangesand end disks through which the lugs 42 of the bars 34 pass are formedto permit this yielding inwardly of the bars 34, and also to serve asguides to determine the direction thereof. The tension of the springs 44is so adjusted as to insure that the bars 34 will have their outer oracting faces so positioned relatively to the acting faces of the rolls32, when the machine is at rest, as to preserve the normal circularcurvature of the roll as a whole, as above suggested.

It will be readily under o foregoing that, stated in general terms, theleveling roll 18 comprises a rotary carrier consisting of the flangedhub 20 and end disks 38, 40 connected thereto; and, arranged about theperiphery of the carrier, a series of rolls or rollers 32, and a seriesof rubbing bars or ribs 3 L; a roller 32 being disposed between each twoof the bars 34:. The rolls 32 are freely rotatable about their own axesindependently of the rotation of the carrier and the bars 34 which arerestrained from turning about their axes are movably mounted inguideways in the carrier so as to be capable of independent yieldingmovement inwardly toward the axis of the carrier. Thus the workingmembers alternately engage the work with percussive and yieldingcontacts, and the stock is treated successively with striking, rolling,rubbing and gliding movements, whereby the work is operated upon in thevery best manner to secure the desired results.

Having outlined the nature of the invention and described a machineembodying the same, what I claim as new and desire to secure by LettersPatent of the United States is I 1. In a machine of the class described,a rotary tool comprising an annular series of rollls alternating with aseries of yielding r1 s.

2. In a machine of the class described, a rotary tool having a workingsurface comprising alternating rolls freely rotatable about their ownaxes, and rubbing members yieldably pressed out radially and restrainedfrom turning movement.

3. In a machine of the class described, a

rotary carrier; longitudinal rubbing bars yieldably mounted in the saidcarrier; and, alternating with the said bars, longitudinal rolls mountedto be independently rotatable about their own axes.

i. A machine of the class described, having, in combination, a rotarycarrier comprising end disks, a series of longitudinally curved rollsindependently rotatable about their axes, and an alternate series ofsimilarly curved spring-pressed ribs independently mounted in the saiddisks to permit them to yield inwardly in approximately radial lineswhen they engage the work, but restrained from tipping or turning abouttheir axes.

5. A finishing tool comprising rubbing members and rolls, a hub with aflange at each end, notches in the flanges'for the rubbing members, adisk formed to confine the rubbing members, and pivot bolts for therolls, screwing into the flanges and holding the disk in place.

In testimony whereof I have signed my name-to this specification in thepresence of two subscribing witnesses.

JOHN B. HADAWAY.

\Vitnesses:

CHESTER E. Rooms, LAURA M. GooDRInGE.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

